Motor-starting mechanism



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MOTOR STARTING MECHANISM.

APPLICATION L 3,1 1,401,747. Patented Dec. 27, 1921."

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A. WINTON. MOTOR STARTING MECHANISM- APPLICATION FILED 11120.23. 1.916.

1,401,747, Patented D60.27, 1921.

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arnet ALEXANDER WINTON, OF LAKEWOOD OHIO.

- moron-srenrme lvrnomuvrsmg Specification of Letters Patent. PatentedDec. 2'? 1921 Application filed December 23, 1916. Serial No. 138,653."

therefor and particularly to starting mech anism of the air type.

In starting internal combustion motors with air it is customary toemploy a distributer for distributing'air to the several cylinders inproper time so that a starting torque will be transmitted to the motorin the proper manner to start it in the proper direction. When such adevice is used it is rendered useless when the direction of rotation ofthe motor is to be reversed by reason of the improper timing of thedistributer by such' reverse rotation. The present invention thereforerelates to astarting device and particularlydistribut ing mechanismwhich is easily adjusted so that a reverse starting torque'may betransmitted to the motor or in other words so that the motor may bestarted in either direction. v

The invention may be further briefly summarized as consisting in theconstruction and combination of parts hereinafter set forth in thefollowing drawings,'description and claims.

Referringto the drawings Figure 1 is a side elevation of a portion of aninternal combustion motor provided with my device; Fig. 2 is a sectionthrough the several distributing ports of the distributor head; Fig. 3is a vertical section; Fig. 4 is a view in plan showing tWo ports in thevalve for determining the direction of air supply; and Fig. 5 is a viewshowing one of the distributing valves.

In the arrangement shown in the drawings the motor 1 is provided with ashaft 2 which may be the cam shaft or any other shaft properly timedwith the crank shaft,

and it is to this shaft 2 in the present instance that the distributingmechanism is applied and this mechanism will now be described. The motoris intended to be reversible and may be of the two or four cycle type.

The distributor comprises a main body with valve seats 9.

portion made upof two portions 3"and- 4 the former havlng convenientlyarranged ports 5 each leading to a'check Valve port 6 near the centerofsuch body portion. These check valve ports ;6 are symmetrically arrangedabout a central opening 6 and each 1s provided with a seat 7. Theportion 4 of the main body portion is in like manner provided with checkvalve ports 8 and acentral opening 8 in alinement with the open ngs 6and 6 and also provided The arrangementof the ports 6 and 8 and theirvalve seats is such that internal valve chambers are ends. I I The outerend faces of the two portions '3 and 4 of the main body portion arefaced off to form distributing valve seats 10 and formed each having avalve seat at both 11 respectively for the purpose of receiv I ingagainst them Wlll appear.

Secured to the main body portion 3 is distributer valve cover 12, havinga dis trlbuter valve chamber 13 therein and a stufling box 14' receivingpacking 15 and,

gland 16 arranged about the shaf t 2 to prevent leakage at th s point.

Engaging the valve seat 10 is a distribut ing valve 17 in the form of adisk having'an the distributervalves as air distributing opening in theform ofa segmental slot not shown in this valve' but similar to the oneshown inthe other distributing valve" shown in Fig. 5 and de scribedlater This distributing valve 17 i has a hollow shank 18 adaptedtoreceivethe end of the shaft 2 and loosely keyed thereto by akey 19. Aspring 20 is arranged in an opening 21 in the end of the shaft 2 and itengages the bottom of the hollow shank and tends to force the valve 17upon its seat 10. The hollow shank 18 is provided With an extensionextending into the central opening of the bodyportion' 4 and loosely.

keyed to the hollow shank of the other distributing valve 22., Thisdistributing valve 22 is provided With a segmental port or opening .23,hereinbefore referred to and adapted to pass the several check valveports 8 and distribute starting air to such ports. This distributingvalve 22 is held upon its seat 11 by a ball 24 engaged by a spring 25 ina cover plate 26 secured to the body portion 4. This cover plate has anair supply'port 27 leading through the same to a.

valve chamber 28 about the distributing valve 22 and another air supplyport 29 leading to an air channel 30, shown in dotted lines andextending entirely through both parts of the main body to the oppositecover 12 where it communicates with a conduit 31, shown in dotted lines,passing to the other valve chamber 13. The outer face of this cover is avalve seat and receives a supply valve 32 arranged in a valve chamber 33formed in a supply casing The supply valve 32 has a hollow shank 35loosely keyed to a valve stem 36 passing out of the sunol 1. t; n L

casing through a stuliing be consisting of the box 37, the packing 8Sand gland 39. The outer end of the valve stem is provided with a handwheel 40 or other suitable manipulating device. A. spring ll is arrangedbetween the valve 32 and the supply casing and holds the valve upon itsseat. 7

The supply valve 82 is provided with two openings 42 and a3 90 apart andthese openings register with the ports 2'? and 29 which aresubstantially 180 apart, according to the position of the valve asdetermined by the operator. 1

This supply valve 32 is limited in its movement by a recess in itsperiphery forming shoulders which engage a stop pin lt in the coverplate 26. r 1

Air is applied to the casing 3e by'a supply pipe as leading to anysuitable source of compressed air. Branch pipes l6 lead to the severalair inlet valve devices 47 connected to the several cylinders and of anypreferred construction.

The several check valve chambers formed in the main body are providedwith check valves each consisting of a valve proper L8 and oppositelyextending guides e9 extending into the check valve ports 6 and 8 andthese valves are adapted to seat on either of the valve seats 7 and 9according to the direction of flow of the starting air supplied totheports 6 and 8.

In operation the user manipulates the air supply valve so that it is inthe correct position for the proper direction of starting when air willpass, for example, through the port at? and to the distributing valve 22or through channels 29, 30 and 31 to the valve 17, from whence it willbe distributed to the ports 8 in proper time to start the motor thecheck valves seating to the right as shown in Fig. 3 or to the left,according af be started in either direction.

ving described my anvent cla11n:

1. Starting apparatus for internal combustion motors, comprising acasing having a series of oircumferentially spaced cavities each open atboth ends and communicating with a motor cylinder, a check valve in eachcavity seating toward either end thereof, two valves rotating togetherin timed relation with the motor and eachprovided with a port passing inturn the open ends of said cavities, said casing having two chamberscontaining said rotating valves and a pressure chamber communicating byports within the casing with said two chambers, and a single valve insaid pressure chamber having two positions in either of which pres sureflows to one and is cut off from the other of said two chambers.

2. Starting apparatus for internal combustion motors, comprising acasing having a series of circumferentially spaced cavities leach openat both ends and communicating with a motor cyllnder, a checkvalve ineach cavity seating toward either end thereof, two valves rotatingtogether in timed relation with the motor and each provided with a portpassing in turn the open ends of said cavities, said casing having twochambers containing said rotating valves and a pressure chambercommunicating therewith, and a valve in said pressure chamber having twopositions in which pressure flows toone or the other of said twochambers, said last named valve having turning movement about the axisof rotation of said rotating valves.

In testimony whereof I affix my signature.

ALEXANDER WINTON.

